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Digital PCR for Quantifying Circulating MicroRNAs in Acute Myocardial Infarction and Cardiovascular Disease
Published on: July 3, 2018
Promoter polymorphisms in the lncRNA-MIAT gene associated with acute myocardial infarction in Chinese Han population:
Ruchao Ma1,2, Xiaohui He1, Xiaoyun Zhu3
1Shandong University Cheeloo College of Medicine, Jinan, Shandong 250012, China.
Insights
Genetic variations in the MIAT gene promoter, specifically rs5752375 and rs9608515, are linked to acute myocardial infarction (AMI) in the Chinese Han population. These findings may aid in the early diagnosis of AMI.
Area of Science:
- Genetics
- Cardiovascular Disease Research
- Molecular Biology
Background:
- Coronary atherosclerotic disease (CAD) is a leading global cause of mortality and morbidity.
- Acute myocardial infarction (AMI) represents the most severe manifestation of CAD.
- The myocardial infarction (MI) associated transcript (MIAT) long non-coding RNA plays a crucial role in AMI pathogenesis.
Purpose of the Study:
- To investigate the association between polymorphisms in the MIAT gene promoter and AMI.
- To analyze these associations within the Chinese Han population.
Main Methods:
- Recruited 212 AMI patients and 218 healthy controls.
- Utilized polymerase chain reaction (PCR) and sequencing to identify MIAT promoter single nucleotide polymorphisms (SNPs).
- Employed chi-square tests, logistic regression, and SHEsis software for statistical analysis, linkage disequilibrium, and haplotype analysis.
Main Results:
- Identified ten SNPs in the MIAT promoter region.
- Found significant associations between AMI and two specific SNPs: rs5752375 and rs9608515.
- Observed that these associated polymorphisms might alter transcription factor binding sites within the MIAT promoter.
Conclusions:
- MIAT promoter polymorphisms rs5752375 and rs9608515 are significantly associated with AMI in the Chinese Han population.
- These genetic markers hold potential clinical importance for the early diagnosis of AMI.
- Further research into MIAT's role in AMI pathogenesis is warranted.
Background:
Coronary atherosclerotic disease (CAD) is one of the greatest causes of death and disability around the world, and has emerged as a major public health problem. Acute myocardial infarction (AMI) is the most serious type of CAD. Myocardial infarction (MI) association transcript (MIAT) has demonstrated that it plays an important role in AMI.
Purpose:
To investigate the association between MIAT promoter polymorphisms and AMI in Chinese Han population.
Methods:
A total of 212 AMI patients and 218 healthy controls were recruited. The long non-coding RNA (lncRNA)-MIAT promoter polymorphisms (single nucleotide polymorphisms (SNPs)) were obtained using polymerase chain reaction (PCR) and sequencing techniques. Chi-square test was used to analyze the allele and genotype frequencies of each SNP in two groups. Logistic regression analysis was used to analyze the association of each SNP with AMI. Linkage disequilibrium (LD) and haplotype analysis were performed using SHEsis software. A JASPAR database search predicts transcription factors transition of linked polymorphism in MIAT promoter.
Results:
Ten SNPs were found, including rs56371714, rs55892869, rs151057042, rs2157598, rs150465374, rs5761664, rs8142890, rs5752375, rs9608515 and rs1055293700, whereas rs1055293700 was found only in the control group. Single and logistic regression analysis showed that there was a significant correlation between rs5752375 and rs9608515 polymorphisms and AMI, while other sites had no relationship with AMI. These MI association polymorphisms may change the binding sites with transcription factor.
Conclusions:
The polymorphisms of lncRNA-MIAT promoter rs5752375 and rs9608515 were significantly associated with AMI in Chinese Han population. This result would be of clinical importance for the early diagnosis of AMI.
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